fix: github changeloger should use short commits

internal/client/github.go

@@ -13,6 +13,7 @@ import (
 	"github.com/caarlos0/log"
 	"github.com/google/go-github/v47/github"
 	"github.com/goreleaser/goreleaser/internal/artifact"
+	"github.com/goreleaser/goreleaser/internal/git"
 	"github.com/goreleaser/goreleaser/internal/tmpl"
 	"github.com/goreleaser/goreleaser/pkg/config"
 	"github.com/goreleaser/goreleaser/pkg/context"
@@ -63,10 +64,19 @@ func (c *githubClient) GenerateReleaseNotes(ctx *context.Context, repo Repo, pre
 	return notes.Body, err
 }
 
+func commitAbbrevLen(ctx *context.Context) int {
+	hash, err := git.Clean(git.Run(ctx, "rev-parse", "--short", "HEAD", "--quiet"))
+	if err != nil || len(hash) > 40 {
+		return 40 // max sha1 len
+	}
+	return len(hash)
+}
+
 func (c *githubClient) Changelog(ctx *context.Context, repo Repo, prev, current string) (string, error) {
 	var log []string
-
+	commitlen := commitAbbrevLen(ctx)
 	opts := &github.ListOptions{PerPage: 100}
+
 	for {
 		result, resp, err := c.client.Repositories.CompareCommits(ctx, repo.Owner, repo.Name, prev, current, opts)
 		if err != nil {
@@ -75,15 +85,14 @@ func (c *githubClient) Changelog(ctx *context.Context, repo Repo, prev, current
 		for _, commit := range result.Commits {
 			log = append(log, fmt.Sprintf(
 				"%s: %s (@%s)",
-				commit.GetSHA(),
+				commit.GetSHA()[0:commitlen-1],
 				strings.Split(commit.Commit.GetMessage(), "\n")[0],
 				commit.GetAuthor().GetLogin(),
 			))
 		}
 		if resp.NextPage == 0 {
 			break
 		}
-
 		opts.Page = resp.NextPage
 	}
 

internal/client/github_test.go

@@ -289,7 +289,7 @@ func TestChangelog(t *testing.T) {
 
 	log, err := client.Changelog(ctx, repo, "v1.0.0", "v1.1.0")
 	require.NoError(t, err)
-	require.Equal(t, "6dcb09b5b57875f334f61aebed695e2e4193db5e: Fix all the bugs (@octocat)", log)
+	require.Equal(t, "6dcb09b: Fix all the bugs (@octocat)", log)
 }
 
 func TestReleaseNotes(t *testing.T) {